Key Biscayne to Jacksonville is 351.2 miles and takes about 6h 37m via I 95 and Florida's Turnpike, with a fuel budget near $55 and enough daylight to finish in a day. This trip stays within Florida, taking you from the southern tip of the state up the eastern coast. With a high percentage of highway driving, expect a straightforward trip focused on covering distance. It's a solid option if you're looking for a single-day drive with minimal navigation challenges.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
175.6 miles from Key Biscayne, FL
A natural place for your longest stop of the day
, about 3h 23m into the drive
.
Main Roads
Road
Distance
Duration
I 95
231.1 mi
4h 12m
Florida's Turnpike
108.1 mi
2h
Rickenbacker Causeway
5.6 mi
9m
US 1
1.3 mi
3m
Crandon Boulevard
0.5 mi
1m
Okeechobee Road
0.3 mi
<1m
Beaver Street
<0.1 mi
<1m
Union Street
<0.1 mi
—
Some road-level metrics are being recalculated.
Longest stretch:
I 95
— 231.1 mi, about 4h 12m
Traffic on I-95
Hour-of-day weekday pattern from 130 FHWA count stations on your route.
Peak
4 PM
~3,449 veh/hr typical
· worst 4,190
Quietest
2 AM
~271 veh/hr
Peak-to-quiet ratio
12.7×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Key Biscayne, FL and Jacksonville, FL.
1
Start on Crandon Boulevard
0.5 mi·1 min·Crandon Boulevard
2
Continue on Rickenbacker Causeway
5.6 mi·9 min·Rickenbacker Causeway
Use the straight lane.
3
Take the ramp
0.6 mi·1 min
Toward US 1 South, I 95 North: Coral Gables, Downtown, Airport
4
Merge onto I 95; US 1
3.6 mi·5 min·I 95; US 1
Use the straight / slight right lanes.
5
Keep slight right at fork onto I 95
7.8 mi·9 min·I 95
Use the straight / slight right lanes.
6
Take the exit
0.8 mi·1 min
Exit 12AToward SR 826 West: Florida's Turnpike TollUse the slight left lane.
7
Keep slight left at fork
0.4 mi·54 sec
Toward Florida's Turnpike
8
Merge onto Florida's Turnpike
108 mi·2 hr·Florida's Turnpike
Use the straight / slight right lanes.
9
Take the exit
0.5 mi·53 sec
Exit 152Toward FL 70: Fort Pierce, Vero BeachUse the slight right lane.
10
Keep slight right at fork
214 ft·5 sec
Toward FL 70 East: Fort Pierce
11
Merge onto FL 70
0.3 mi·35 sec·Okeechobee Road
12
Take the exit
0.2 mi·23 sec
Toward I 95
13
Keep slight left at fork
0.5 mi·1 min
Toward I 95 North: Daytona BeachUse the straight / slight right lanes.
14
Merge onto I 95
220 mi·3 hr 57 min·I 95
Use the straight / slight right lanes.
15
Keep slight left at fork
1.1 mi·2 min
Toward US 90, US 1, FL 13: Downtown, Main Street, Acosta
16
Keep slight right at fork onto US 1; US 90
287 ft·6 sec·US 1; US 90
Toward US 90, US 1: Main Street, Ocean Street, Newnan Street, Prudential Drive
17
Keep slight left at fork onto US 1; US 90
1.2 mi·3 min·US 1; US 90
Toward US 90, US 1: Main Street, Ocean Street, Newnan StreetUse the straight / slight right lanes.
18
Turn left
132 ft·11 sec
19
Turn right
121 ft·14 sec
20
At end of road, turn left onto US 90
104 ft·4 sec·Beaver Street
21
Turn right
175 ft·13 sec
22
At end of road, turn right
124 ft·11 sec
23
Turn right onto US 17
22 ft·0 sec·Union Street
24
Arrive at destination
US 17
Trip Plan
Given the 6h 37m estimated drive time, leaving Key Biscayne in the morning is your best bet to complete the 351.2 miles before dark. You'll only need one stop for fuel and rest, so plan that break strategically around the halfway point. The longest stretch of uninterrupted driving is 231.1 miles on I 95, so be sure to take a break before or during that section. You can expect to spend around $55 on fuel for this trip.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 175.6 miles from Key Biscayne, FL, or about 3h 23m into the drive.
The longest continuous stretch on this route runs about 231.1 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 77 miles or 1h 34m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 175.6 miles or 3h 23m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 29m
Traffic, exits, and arrival timing usually matter more near Jacksonville, FL than in the middle of the route.
Before You Leave
+
Open the route before leaving Key Biscayne, FL so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Key Biscayne, FL
This is one driving day of about 351.2 miles and 6h 37m.
Your first comfortable stop window is around 77 miles from Key Biscayne, FL.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 95 for about 231.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 21
5 decision points cluster between mile 10.3 and 349.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
10.3 mi into trip|~17m in|I 95
Keep slight right at fork onto I 95
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
18.1 mi into trip|~27m in
Take the exit toward SR 826 West: Florida's Turnpike Toll
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight left lane.
Exit 12A
Toward SR 826 West: Florida's Turnpike Toll
8
127.4 mi into trip|~2h 30m in
Take the exit toward FL 70: Fort Pierce, Vero Beach
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 152
Toward FL 70: Fort Pierce, Vero Beach
7
128.5 mi into trip|~2h 32m in
Keep slight left at fork toward I 95 North: Daytona Beach
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 95 North: Daytona Beach
8
349.9 mi into trip|~6h 33m in|US 1; US 90
Keep slight left at fork onto US 1; US 90 toward US 90, US 1: Main Street, Ocean Street, Newnan Street
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward US 90, US 1: Main Street, Ocean Street,...
Fuel & Cost
Regular Gas
$53.16 one way
$106.33 round trip
$3.85/gal25.4 MPG avg123 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$58.34
$116.67
premium
$4.55
$62.91
$125.82
diesel
$4.80
$66.31
$132.63
Estimated Tolls: $7.57
Florida's Turnpike
(108.1 mi)$7.57
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$53
Tolls
$8
Meals
$25–$50
Total
$86–$111
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 122.9 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $37 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
105.4
1
$36.88
$16.86
Efficient EV
87.8
1
$30.73
$14.05
EV Truck/SUV
140.5
1
$49.17
$22.48
Gas CO2
123 kg
EV CO2
41 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 19, 2026
Origin
Key Biscayne, FL
Late night
in Key Biscayne on Monday
Local time
2:22 AM
EDT
Current temp
89°F
Sunny
S 17 mph12% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 19 at 2:50PM EDT by NWS Tallahassee FL
Tropical Cyclone Local Statement
Tropical Cyclone Local Statement issued July 19 at 10:27AM CDT by NWS Mobile AL
Destination
Jacksonville, FL
Late night
in Jacksonville on Monday
Local time
2:22 AM
EDT
Current temp
94°F
Chance Showers And Thunderstorms
SE 13 mph28% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 19 at 2:50PM EDT by NWS Tallahassee FL
Tropical Cyclone Local Statement
Tropical Cyclone Local Statement issued July 19 at 10:27AM CDT by NWS Mobile AL
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
5 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 37m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Castillo de San Marcos National Monument
National Monument
Built by the Spanish in St. Augustine to defend Florida and the Atlantic trade route, Castillo de San Marcos National Monument preserves the oldest masonry fortification in the continental United Stat...
5 mi from route
~14 min detour
$15
near mile 314.9
Fort Matanzas National Monument preserves the fortified coquina watchtower, completed in 1742, which defended the southern approach to the Spanish military settlement of St. Augustine. It also protect...
6 mi from route
~14 min detour
Free
near mile 302.8
Discover a dynamic barrier island shaped by dunes, coastal hammocks, and Mosquito Lagoon. Walk among ancient Timucua shell mounds and connect with thousands of years of human history. Immerse yourself...
8 mi from route
~21 min detour
$25
near mile 230.1
Within sight of Miami, yet worlds away, Biscayne protects a rare combination of aquamarine waters, emerald islands, and fish-bejeweled coral reefs. Evidence of 10,000 years of human history is here to...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Ninety-seven percent of this 351.2-mile trip is highway, so you'll be on I 95 or Florida's Turnpike for most of the drive. The longest continuous stretch is 231.1 miles on I 95. You'll encounter numerous exits and merges on I 95 as you pass through populated areas. The remaining 3% of the drive will be on surface roads.
97% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 231.1 mi on I 95.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on I 95 and Florida's Turnpike. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 10.3 miles in near I 95.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 21 significant decision points across 351.2 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 10.3 miles (I 95): Highway fork - watch signs carefully. Lane positioning matters here; at 18.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 127.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
42 ft3 ft
Total Climb
69 ft
Total Descent
56 ft
Highest Point
42 ft
~125.4 mi in
Elevation Range
38 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Key Biscayne, FL and Jacksonville, FL, road signs point toward Florida's Turnpike and Vero Beach.
Key Biscayne refers to both a tropical island just southeast of Miami and a village on that island. The Village of Key Biscayne, incorporated on June 18, 1991, is in the center of the four-mile-long, two-mile-wide barrier island between the Atlantic Ocean and Biscayne Bay. The wonderful tropical island is very quiet and mostly residential. Key Biscayne Island, which is south of South Beach, is the first island of the Florida Keys. Beaches are spectacular, the landscaping is lush and waterfront activities are plenty. Some consider it the best area to feel like you are in the islands while being in Miami.
Top landmarks
•Cape Florida Light — lighthouse in Florida, United States
Jacksonville occupies one of the most coveted spots on the Atlantic coast. Set amongst abundant beaches and possessing an ideal subtropical climate, its crown jewel is the unique habitat and natural beauty of the St. Johns River. For this reason and more, "The River City" is a popular destination for vacationers looking for a laid-back Sunshine State escape.
Top landmarks
•Fort Caroline — fort in Florida managed by the National Park Service
•Museum of Contemporary Art Jacksonville — museum in Jacksonville, Florida
•Timucuan Ecological and Historic Preserve — wetlands in Florida (U.S.) managed by the National Park Service
Doable as a same-day drive at 6h 37m. Total distance: 351.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 37m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 231.1 miles on I 95. The full list of main roads is in the Roads section above.
Expect about $7.57 in tolls one way, starting with Florida's Turnpike. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 28 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Jacksonville, FL before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 28 rest areas along the route for bathroom stops.
The main spots that need attention: at 10.3 miles (I 95): Highway fork - watch signs carefully. Lane positioning matters here; at 18.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 127.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Castillo de San Marcos National Monument, Fort Matanzas National Monument and Canaveral National Seashore (4 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.6 hours each way, a round trip means 13.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Jacksonville, FL before the return drive.
